Heel-seat fitting and molding machine



Se t. 25, 1928. 1,685,363

J. A. KELLY HEEL SEAT FITTING AND IIOLDING'IACKINB Filed July 29. 1925 W iorney'" Patented Sept. 25, 1928.

UNITED STATES PATENT OFFICE.

JOHN A. KELLY, OF BROOKLYN, NEW YORK, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

HEEL-SEAT FITTING AND MOLDING MACHINE.

Application filed July 29, 1925. Serial No. 46,711.

This invention relates to machines for use in the manufacture of shoes and is illustrated as embodied in a heel seat fitting machine arranged also to mold and smooth the counter portion of a shoe during the performing of the heel seat fitting-operation.

In the manufacture of shoes to which wood heels are to be applied it is usual to bevel and trim the heel seat portions of their soles to fit the concave attaching surfaces of the heels so that the edges of the heels may engage the shoe uppers closely adjacent to the edges of the soles in such a way that the edges of the heel seat portions of the soles are not visible-in the finished shoes. This provides proper bases to which the wood heels are later attached and also gives the shoes the neat and trim appearance demanded in this type of shoes.

It is an object of the present invention to provide a simple and inexpensive heel seat fitting machine organized not only to trim the surplus material from the outsoles of shoes but also to mold the shoes in order to improve their appearance and quality. Thus in accordance with an important feature of the invention, the illustrated machine includes, in combination, heel seat fitting instrumentalities and a heated mold arranged to Contact with the counter portion of the upper of the shoe during the heel seat fitting operation to smooth the upper leather and to eliminate any wrinkles that may be present. In accordance with a further feature of the invention the illustrated machine is provided with novel -'means for trimming surplus material from the peripheries of the heel seats of the soles of shoes, comprising knives pivoted at the rear of the shoe to be operated upon and swung tOWIIJd each other as they trim oil the surplus stoc With the above and other objects and fea tures in view, the invention will now be described with reference to the accompanying drawings and pointed out in the claims.

In the drawings,

Figure 1 is an elevation partly in section of mechanism for shaping and trimming the heel portion of a shoe.

Figure 2 is a plan view of the counter molding and the heel seat trimming means of the machine of Fig. 1, the dotted lines showing the heel seat trimming cutters in their inoperative position. I

Figure 3 is a cross-sectional view of the counter mold and the trimming cutters of the the chip of material which results from the.

trimming operation. The illustrated machine is provided with a last pin or jack 10 for supporting a last A movable into and out of operative relation to a counter shaper or mold B (Figures 1, 2, 3 and 5), and to heel scat trimming means C (Figures 1, 2, 3 and 4). As shown, the jack 10 is carried by a slide 11 movable in a horizontal path relatively to a guideway 12 of a machine frame 13. The slide 11 is shiftable at will by appropriate means, illustrated as treadle operated and including a toothed sector 14, pivoted at 15 so that its teeth mesh with the teeth of a rack 16 on the underside of the slide 11, see Figure 1. The slide is drawn forwardly by a spring 17 attached to the sector, the latter having a short arm 18 to which is pivoted a link 19 leading to the treadle 20. Extending upwardly from the frame 13 is a hollow post 21, and projecting from the post is an arm 22 which overhangs the path of movement of the last. Said post 21 is shown as provided with a bracket 23 supporting the mold B, see Figures 1 and 2, in the path of the last A which is movable with the slide 11 back and forth relatively to the post 21.

While various forms of counter sha ers or molds B may be .used, that illustrate comprises an electrically heated and expansible element, shown particularl in Figure 5. The mold B consists of a p urality of parts 6, I), each curved lengthwise and connected pivotally by a bolt or pin b, the latter servin also as means for pivotally attaching sai parts to the bracket 23 which carries the mold, see Figure 1. The mold is thus arran ed for expansion and contraction to render it conformable to the sizes and shapes of different shoes. (lo-operating with the two-part mold B is a suitable pressure device, shown as a spring 6 which is arched and embraces the parts Z), 6, tendin to press them into contact firmly with t e upper leather of the counter portion of the shoe to be operated upon. This smooths the upper leather, eliminating any wrinkles it may have. and conforms the counter of the shoe to the last. The parts I), I), of the mold are chambered for the accommodation of electric resistance elements 6 (see Figure 3) acting to heat the mold elements I), 7). Suitablebinding posts b are provided on the parts 7), 7), for the attachment of the current conducting wires 5 Figures 1 and 5. The described construction provides for the application by the mold of heat and pressure to the counter portion of a shoe in a manner to conform said counter to the last and thus eliminate any wrinkles which are in the leather of the counter. As illustrated mold members I), b have flat top surfaces and thin edges adapted to enter the rand crease of a shoe to support the edge of its sole, thus acting as crease plates during the heel seat fitting operation.

The heel seat fitting or trimming mechanism embodies a pair of beveling or skiving cutters c. c, and a plurality of cutters d, d arranged to make a heel breast receiving cut at the heel breast line of the sole of a shoe. Cutters 0, c and d, d are shown in their spread positions by dotted lines in Figure 2 and in their closed positions by full lines 1n said figure. The skiving cutters c, c, are fashioned for overhanging contact at their heel ends, and these cutters are mounted on the upper ends of concentric rock shafts 25, 26 carried by post 21. The rock shaft 26 1s a solid rod, whereas the rock shaft 25 is tubular or sleeve-like, said solid part 26 extending within and through the tubular part 25, see Figure 2 and dotted lines in Figure 1. The skiving cutters c, 0', rest u on the top faces of the chambered parts b, of the mold B, see Figure 3, and they are movable in inclined paths part way across the last A for the purpose of trimming and bending the heel seat portion of the sole of a shoe, see dotted lines in Figure 3.

The concentric shafts 25, 26, extend vertically through the frame 13, so that the cutters c, c, are supported by the upper ends of said shafts in the required relation to the mold B, said shaft 25 being free to turn in a bearing of the frame 13 and the shaft'26 being free to turn within the tubular shaft 25. Said rock shafts 25, 26, are provided at their lower ends with lugs or short arms 27 28, respectively, each having a hub rigidly secured to the corresponding shaft, Figures 1 and 2, and to said arms or in are connected links 29, the other ends 0 which are attached to bell cranks 30, mounted on an arbor 31 of the frame. These bell cranks are operated by a treadle 33 connected by links 32 with said bell cranks 30 so that pressure on the treadle 33 operates to impart movelm-nt. through th bell cranks and the rock shafts 25, 26, simultaneously to the skiving knives 0, 0. These knives c, c, are supported and operated independently of the heated mold l3, and said knives are in operative relation to said mold, so that the last may carry the shoe into position for the mold to have the required contact with the counter and for the skiving knives to be moved across the heel portion of the sole as shown in Figure 3 to bevel the heel seat and thus shape the heel seat to conform to the hollow attaching face of a wood heel.

As cutters c, c are rotated to trim and bevel the heel seat portion of the sole, they ride upwardly over the inclined top surfaces of mold member 5, b. To permit this shafts 25, 26, which carry cutters c, c, are mounted for vertical sliding as well as rotary movement in column 21. In order to prevent undesired displacement of cutters c, 0', they are urged downwardly against the top surfaces of the mold members I), b by a spring 40 surrounding hollow shaft 25 and hearing at its lower end against the hub of arm 23 (see Fig. 1) which is attached to shaft 25 and at its upper end against a frame memher of the machine. As indicated in Fig. 1, the portions of cutters c, 0' adjacent to shafts 25 and 26 are shaped so that cutters c, 0' do not interfere as they are moved with a scissors-like motion inwardly from the position indicated in dotted lines in Fig. 2.

The knives 0, 0', cut the material of the sole at the heel to produce a fragment E the general form of which is shown detaehed in Figure 6, but to sever this fragment from the rear part of the sole and to form heel breast receiving shoulders cutters d, d are moved transversely of the sole. Said cutters d, d, are in the form of members provided with depending knives (1 said members each being pivoted at one end. The knife carrying members (5, d, are fashioned to overlap at their pivoted ends, and are hung from the over-hanging frame arm 22 by a bolt or pin 34 attached to the arm 22 and pivotally attaching the knife members (I, d. These members are in advance of the knives c, a, but in substantially the same horizontal plane. Knife members d, d, are urged outwardly by a spring 35 coiled around the pivotal bolt 34 with the arms of the spring in engagement with the knife members (i, d, thereby tending to spread them apart. Suitable means are provided for the positive operation of the transverse cutters d, (1. As illustrated the operation of cutters d, d, is dependent upon the operation of the treadle-actuatcd cutters c, c. To this end, the cutters'c, c, are provided at their free ends with fingers 36, and with pins 37 extending upwardly from said fingers. The free ends of the spring actuated knife members (1, d, are in the paths of the pins 37 on the cutters c. c, and as these cutters c, c, are. moved inwardly by the treadle Oil 33, the pins 37 engage with the free ends of the knife members d, d, pressing them in wardly so that knives d may sever the fragment E at the heel breast line of the sole.

The operation is apparent from the foregoing description, but may be summarized as follows: A last A on which is a shoe F having a sole G is mounted on the jack 10, and by pressure on treadle the last and shoe are carried horizontally into engagement with the heated mold B which embraces and smoothes the counter portion of the shoe conforming this portion of the shoe to the last.

. By pressure applied to treadle 33, the cutters ill c, c, are pressed inwardly to traverse the upper face of the mold B and their cutting edges thus trim and bevel the rear and side edges of the sole G at the heel portion thereof. Cutters c, 0' thus produce the bevels g on the heel seat of the sole G shown in Figure 6, thereby shaping the heel seat portion of the sole to receive the concave attaching surface of a wood heel. During the inward movement of the cutters c, c, as they trim the heel seat, the pins 37 of the cutters c, c, engage with the outer edges of the knife members d, d, and as the cutters c, 0', approach the inward limit of their movement, the pins 37 of said cutters c, c, act to impart movement to the knife members (2, d. Thus the knives d of said knife members (i, d, act on the heel seat fitting material of sole G to sever the fragment E from. the sole, completing the operation.

The herein disclosed means for cuttin the heel breast receiving shoulder in the so e ofa shoe and the combination of said means with the mold for smoothing the counter portion of the shoe are not claimed in this application since they form the subject-matter of Letters Patent of the United States, No. 1,642,033, granted September 13, 1927 on my copending application, Serial No. 148,453, filed November 15, 1926, as a continuation in part of this application.

Having thus fully described the invention, what I claim as new and desire to secure by Letters Patent is 1. In a shaping and trimmin machine, a mold, means for heating said mo d, a plurality of beveling knives, meansfor supporting and moving a last into operative posltion relatively to the mold and said knives, and means for actuating said knives.

2. In a shaping and trimming machine, a mold, means for heating said mold, a pair of cutters co-operating with said mold, a last carrier, means for actuating said last carrier to present a shoe in position for engagement by said mold and for the operation of said cutters, and means for moving said cutters in a path to trim the heel seat of said shoe.

3. A machine for use in the manufacture of shoes having, in combination, means for molding the counter portion of the upper of a shoe mounted upon a last, and means for trimming the peripheral port on of the heel seat of the sole of the shoe during the operation of said molding means.

4. A machine for use in the manufacture of shoes having, in combination, a mold for smoothing the counter portion of the upper of a shoe mounted upon a last, and a cutter for beveling a portion of the periphery of the sole of the shoe during the operation of said mold.

5. A machine for use in the manufacture of shoes having, in combination, a mold arranged to engage and shape the counter portion of a shoe mounted upon a last, an electric resistance unit for heating said mold, and a plurality of cutters arranged to bevel the heel seat portion of the sole of the shoe during the operation of said mold.

6. A machine for use in the manufacture of shoes having, in combination, a mold ar ranged to engage and shape a portion of a shoe mounted upon a last, means for heating said mold, and a cutter arranged to operate upon the sole of a shoe during the operation of said mold.

7.A machine for use in the manufacture of shoes having, in combination, a mold arranged to engage and shape a portion of a shoe mounted upon a last, and a cutter arranged to operate upon the sole of the shoe during the operation of said mold.

8. A machine for use in the manufacture of shoes having a pair of pivotally connected mold members arranged to engage and shape the counter portion of a shoe mounted upon a last, said mold members having thin edges arranged to enter the rand crease of the shoe, means for heating said mold members, and means for beveling the peripheral portion of the heel seat of the sole of the shoe while the shoev is engaged by said mold members.

9. A machine for use in the manufacture of shoes having'a pair of pivotally connected hollow mold members arranged to engage and shape the counter portion of a shoe mounted upon a last, said mold members having thin edges arranged to enter the rand crease of the shoe, electric resistance units housed in said mold members for heating said members, and cutting means for beveling the peripheral portion of the heel seat of the sole of a shoe while the shoe is operated upon by said mold members.

10.-A heel seat fitting machine having a work support and a pair of cutters arranged to trim surplus material from the peripheral portion of the heel seat of the sole of a shoe carried b the support, said cutters being mounted or pivotal movement about an axis to the rear of the shoe upon the support.

11. A heel seat fitting machine having a work support, and a pair of cutters arranged to trim surplus material from the peripheral portion of the heel seat of the sole of a shoe carried by the support, said cutters being mounted for pivotal movement toward each other about an axis to the rear of the shoe upon the support.

12. A heel seat fitting machine comprising a support for a shoe, a pair of crease plates mounted for ivotal movement about an axis to the rear 0 the support and arranged for movement into the rand crease of a shoe upon the support, and a pair of cutters also mounted for pivotal movement about an axis to the rear of the support arranged to bevel the peripheral portion of the heel seat of the sole of the shoe upon the support.

13. A heel seat fitting machine comprising a support for a shoe, a pair of crease plates mounted for pivotal movement about an axis to the rear of the support and arranged for movement into the rand crease of a shoe upon the support, and a pair of cutters also mounted for pivotal movement toward each other about an axis to the rear of the support arranged to bevel the peripheral portion of the heel seat of the sole of the shoe.

14. A heel seat fitting machine having a work support, a pair of thin-edged members mounted for pivotal movement about an axis to the rear of a shoe on the support and arranged to enter the rand crease of the shoe, said members having inclined top surfaces, and a pair of cutters arranged to move over said inclined top surfaces from the periphery toward the center line of the shoe upon the support to bevel the periphery of the heel seat surface of the sole of the shoe.

15. A heel seat fitting machine having a Work support, a pair of thin-edged mold members mounted for pivotal movement about an axis to the rear of the shoe on the support and arranged to enter the rand crease of the shoe and to smooth the counter portion of the upper of said shoe, said members having inclined top surfaces, and a pair of pivot ally mounted cutters arranged to move simultaneousl toward each other over said inclined top sur aces from the periphery toward the center line of the shoe to bevel the heel seat surface of the sole of the shoe.

In testimony whereof I have hereto signed my name this 28th day of July, 1925.

- JOHN A. KELLY.

CERTIFICATE OF CORRECTION:

Patent No. 1,685, 363.

Granted September 25, 1928, to

JOHN A. KELLY.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, line 44, for the word "bending" read "heveling"; page 3, lines 31 and 32, strike out the words "heel seat fitting" and insert the same before the word "operation" in line 33;

and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 4th day of June, A. D. 1929.

, (Sell) M. J. Moore, Acting Commissioner of Patents.

mounted for pivotal movement toward each other about an axis to the rear of the shoe upon the support.

12. A heel seat fitting machine comprising a support for a shoe, a pair of crease plates mounted for ivotal movement about an axis to the rear 0 the support and arranged for movement into the rand crease of a shoe upon the support, and a pair of cutters also mounted for pivotal movement about an axis to the rear of the support arranged to bevel the peripheral portion of the heel seat of the sole of the shoe upon the support.

13. A heel seat fitting machine comprising a support for a shoe, a pair of crease plates mounted for pivotal movement about an axis to the rear of the support and arranged for movement into the rand crease of a shoe upon the support, and a pair of cutters also mounted for pivotal movement toward each other about an axis to the rear of the support arranged to bevel the peripheral portion of the heel seat of the sole of the shoe.

14. A heel seat fitting machine having a work support, a pair of thin-edged members mounted for pivotal movement about an axis to the rear of a shoe on the support and arranged to enter the rand crease of the shoe, said members having inclined top surfaces, and a pair of cutters arranged to move over said inclined top surfaces from the periphery toward the center line of the shoe upon the support to bevel the periphery of the heel seat surface of the sole of the shoe.

15. A heel seat fitting machine having a Work support, a pair of thin-edged mold members mounted for pivotal movement about an axis to the rear of the shoe on the support and arranged to enter the rand crease of the shoe and to smooth the counter portion of the upper of said shoe, said members having inclined top surfaces, and a pair of pivot ally mounted cutters arranged to move simultaneousl toward each other over said inclined top sur aces from the periphery toward the center line of the shoe to bevel the heel seat surface of the sole of the shoe.

In testimony whereof I have hereto signed my name this 28th day of July, 1925.

- JOHN A. KELLY.

CERTIFICATE OF CORRECTION:

Patent No. 1,685, 363.

Granted September 25, 1928, to

JOHN A. KELLY.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, line 44, for the word "bending" read "heveling"; page 3, lines 31 and 32, strike out the words "heel seat fitting" and insert the same before the word "operation" in line 33;

and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 4th day of June, A. D. 1929.

, (Sell) M. J. Moore, Acting Commissioner of Patents. 

